MCF5249LAG120 Freescale Semiconductor, MCF5249LAG120 Datasheet - Page 8

• Manufacturer Part Number: MCF5249LAG120
• Description: IC MPU 32BIT COLDF 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF524xr

Specifications of MCF5249LAG120

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 120MHz
• Connectivity: I²C, IDE, MMC, SPI, UART/USART
• Peripherals: DMA, I²S, POR, Serial Audio, WDT
• Number Of I /o: 34
• Program Memory Type: ROMless
• Ram Size: 96K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 4x12b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 144-LQFP
• Family Name: MCF5xxx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 120MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.8V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Package Type: LQFP
• Maximum Clock Frequency: 120 MHz
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Program Memory Size: 8KB
• Cpu Speed: 120MHz
• Embedded Interface Type: I2C, QSPI, UART
• Digital Ic Case Style: LQFP
• No. Of Pins: 144
• Rohs Compliant: Yes
• For Use With: M5249C3 - KIT EVAL FOR M5249 W/ETHERNET
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Compliant

MCF5249 Functional Overview
Two internal audio channels and the dual UART can be used with the DMA channels. All channels can
perform memory to memory transfers. The DMA controller has a user-selectable, 24- or 16-bit counter and
a programmable DMA exception handler.
External requests are not supported.
1.5.3
The integrated EMAC unit provides a common set of DSP operations and enhances the integer multiply
instructions in the ColdFire architecture. The EMAC provides functionality in three related areas:
Multiplies of 16x16 and 32x32 with 48-bit accumulates are supported in addition to a full set of extensions
for signed and unsigned integers plus signed, fixed-point fractional input operands. The EMAC has a
single-clock issue for 32x32-bit multiplication instructions and implements a four-stage execution pipeline.
1.5.4
The instruction cache improves system performance by providing cached instructions to the execution unit
in a single clock. The MCF5249 processor uses an 8 Kbyte, direct-mapped instruction cache to achieve 125
MIPS at 140 MHz. The cache is accessed by physical addresses, where each 16-byte line consists of an
address tag and a valid bit. The instruction cache also includes a bursting interface for 16-bit and 8-bit port
sizes to quickly fill cache lines.
1.5.5
The 96-Kbyte on-chip SRAM is split over two banks, SRAM0 (64k) and SRAM1 (32K). It provides one
clock-cycle access for the ColdFire core. This SRAM can store processor stack and critical code or data
segments to maximize performance. Memory in the second bank can be accessed under DMA.
1.5.6
The MCF5249 DRAM controller provides a glueless interface for up to two banks of DRAM, each of which
can be up to 32 Mbytes. The controller supports a 16-bit data bus. A unique addressing scheme allows for
increases in system memory size without rerouting address lines and rewiring boards. The controller
operates in page mode, non-page mode, and burst-page mode and supports SDRAMs.
1.5.7
The MCF5249 provides a glueless interface to 16-bit port size SRAM, ROM, and peripheral devices with
independent programmable control of the assertion and negation of chip-select and write-enable signals.
The MCF5249 also supports bursting ROMs.
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1. Faster signed and unsigned integer multiplies
2. New multiply-accumulate operations supporting signed and unsigned operands
3. New miscellaneous register operations
Enhanced Multiply and Accumulate Module (EMAC)
Instruction Cache
Internal 96-Kbyte SRAM
DRAM Controller
System Interface
MCF5249 Integrated ColdFire® Microprocessor Product Brief
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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